Monoclonal Gammopathy of Neurological Significance in a Patient With Chronic Lymphocytic Inflammation With Pontine Perivascular Enhancement Responsive to Steroids (CLIPPERS Syndrome): A Case Report of a Rare Entity

伴有慢性淋巴细胞性炎症和桥脑血管周围强化且对类固醇治疗有效的单克隆丙种球蛋白病（CLIPPERS综合征）：一例罕见病例报告